Spring heel



` Nov'. 24, 192s. 1,562,986

J. MUSTO SPRING HEEL Filed Aug. 4 1924 INVENTOR Jalan MLLS'U ATTORNEY Patented hier. Ed',

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JOHN MUSTO, OF W'ATERBURY, CONNECTICUT.

SPRNG' HEEL.

Application nled August 4, 1924. Serial No. 729,963.

To (1U `'lolz-ont l11mg/ concern.'

Be it known that l, J HN M'Usro, a citizen ot the United States, and a resident ot ldiraterbury, county' oit New Haven, and State ofi Connecticut, have invented certain new and useitul lmrnovements in Spring Heels, oit which the iollowing is a specilication.

This invention relates to spring heels -tor boots and slices, and more particularly to a spring heel having a plurality oit springs and in which the positions ot the springs may be adjusted as may be desired according to the condition ot' the toot.

A. urther object is to provide a spring heel ot the above nature in which thetread member may easily be removed and interchanged with a similar tread member trom the other shoe ot a pair.

n. 'Further object of the invention is to provide a device of the above nature which will be simple in construction, inexpensive to immutactru'c, ornamental in appearance, asv to install and manipulate, and very elticient and durable in use.

lilith these and other objects in view, there have been illustrated on the accompanying drawings two forms in which the invention may be conveniently embodied in practice.

l? 1 represents a fragmentary elevation ot the rear portion ot a shoe, showing in section the first torni ot sjring heel attached thereto.

Fig. 9. is a bottom view ot the same, with the lower portion ot the spring heel removed tor greater clearness.

Fig. 3 is a view similar to Fig. 1 showing the second form ot spring heel attached to a shoe.

Fig. 4; is a perspective view ot the upper hollow shell oit the spring heel shown in Fig. 3.

Fig. 5 is a perspective view ot the cover plate adapted to be used with the shell shown in Fig. 4.

lle'lerring now to the drawings in which like reference numerals denote corresponding parts throughout the several views, the nume al indicates a hollow shell having a tlat upper base 11 adapted to be held in 'contact with a sole 12 ot a shoe 13 by means ot screws 14 passing through apertures 15 in said base.

The shell 10 is provided with a flange 16 extending downwardly from the edge oi the base 11, and the sides 18 and rear 19 of said l'iange being bent inwardly at 17"L Yl'or a short distance parallel to the base 11, to torni a shelf. rThe :forward portion 17 ot' the flange 1G is oi'' slightly less height than the sides 18 and rear 19 thereot, so as to permit a plate `2O to be slid into the shell? 17, as shown in Fig. 1.

In order to permit theremoval ogt the plate 20, a curved slot 20 is formed in the forward portion 17 ot the lange 16, whereby a screw driver or other tool may easily be inserted therein to force the plate 9.0 downward under the torward portion 17.

The plate 9.0 is provided with a series ot apertures 21 for receiving the upper ends et lugs 22, said lugs 22 having enlarged lower heads Q3 adapted to be embedded .in suitable sockets in a rubber heel or tread member 24;.

Secured to the under side ot the base 11 are a series ot adjustable arms 25-tour in number in this instance-said arms having apertures at one end surrounding the screws 14s, previously mentioned. The arms 9.5 are provided at their tree ends with down wardly depending plugs 2G, each of said plugs being surrounded by a spiral springl 27 ot any suitable `size and material, as clearly shown in Figs. 1 and 2.

ln operation, when it is desired to change the position oi' one of the spring-holding arms 25, it will only be necessary to remove the pla-te 2() and tread portion 9.4 inl thb manner described above, and to loosen the proper' one of the screws 14. The arm 2V may then be rotated to the position desired, after which the screw 14k will be tightened and the plate 20 and the heel 24 may be moved back into their normal position as shown in Fig. 1.

In the modified 'term ot the invention shown in Figs. fk5, the flange 16 ot the shell 10*l is provided on its sides 18 and 19 with a continuous semi-circular bead 9.8. 'lhis 'term ot spring heel. has a plate Q0 shaped to slide within the shell and on its sides and rear has an upstanding rib 29 adapted to fit within the bead 28 when the plate has been slid into position.

By means ot this construction, it will be seen that it will be impossible ttor the plates 2O and 201) ot either 'torni to aceid entally come out of the shells 10 and 10, and said plates can only be removed by the use of the screw driver or other suitable tool inserted in the slot 2Oa as described above.

The springsi in the second illustrated torni ol the invention are not adjustable, as in the lirst torni, but are lixed in position by a series ot .screw plugs 30 upon which they are mounted. ',lhe upper ends oit the screw plugs are threaded and adapted to pass through the base oli the shell and into the sole ot' the shoe. The heel tread 3l ofthe second it'orni olf the invention has a series of open sockets 32 e.\"tending` from the bottom ol the tread partway toward the top there ot, and the l eel tread Sl. is adapted to be secured to the plate by a series of headed serews 32:) seated in said open sockets and having;A their ends threaded to engage in threaded holes 34tin the plate 201.

It will. thus be seen that with the second form ol: the invention, not onlj7 ma),7 the plates with their attached treads be interchanged from oner shoe to the other, but the tread ot each heel may be removed and replaced byl a new one whenever desired .without the use of cement or other type of adhesive material.

1t will be understood that the present invention is not limited to the use of spiral springs, but other types of springs may be employed it desired. Also dilerent shapes of flanges and beads may be employed instead of the terms shown.

lvloreover, instead oli a slidingl plate, as illustrated, a plate may be employed which will be snapped into position il2 desired, by pushing` it transversely into the shell.

lV-hile there have been disclosed in this speeilieation two forms in which the invention may be embodied, it is to be understood that these forms are .shown lor the purpose Lee-aseo of illustratimi only, and that the invention is not to be` limited to the specilio disclosures but mayv be modified and embodied in various. other forms without departing from its spirit. In short, the invention includes all the modilieations and embodiment-sl coming within the scope of the following claims.

lflav'inio)` thus l'ullj7 described the invention, what is clain'ied las new, and for which it is desired to secure Letters Patent, is:

l. ln a spring heel, a hollow shell adapted to be attached to the rear of the sole of a shoe, a plate releasably closing said shell, said plate lawine,- a heel tread secured thereto, a spring-j .located in said shell and eng-raningy said plate, and adjustable means for holding` said spring in various positions within said shell.

2. ln a spring heel, a hollow shell adapted to be attached to the rear ol' the sole of a shoe, a plate releasablj7 closing said shell, an arm pivoted to sait shell, a spring seated on said a rm, and means for holding said arm and spring in dil'erent adjusted positions within said shell.

ln a sprinfg` heel, a hollow shell, means for holding` said shell to the rear of the sole ot a shoe, a plate releasably closing' said shell, said plate having a heel. tread secured thereto, a plurality ot springs secured to said shell and adjustable relative thereto,

and means for holding` said springs in any F adjusted positions, the means l'or holdin;i said shell to said sole also serving' to hold said spring holding mea-ns to said shell.

In testimonj,T whereof, l have alixed my signature to this specification.

JOHN MUSTO. 

